ECU overview
The Valeo V46.x is part of the V4 generation from Valeo. In the Map Decoder database it is linked to Citroen and Peugeot vehicles. Coverage for this ECU is built from 18 stored modifications learned on real original and modified files.
What Map Decoder can do on a V46.x file
Every operation below is backed by a stored, verified modification for V46.x. Nothing is listed that the software cannot actually perform on this ECU.
Catalyst Off
Disables catalyst efficiency monitoring in V46.x.
Lambda / O2
Disables lambda / O2 sensor monitoring in V46.x without breaking fuelling.
Throttle Valve (TVA)
Disables throttle valve actuator control and monitoring in V46.x.
Map detection and patch generation for V46.x
Map detection
Upload an original V46.x read. Map Decoder locates the relevant calibration tables automatically instead of relying on a fixed address list, so files from different software versions are handled.
Patch generation
A stored modification is only offered when it fits your binary. Region similarity and anchor signatures are checked against the uploaded file first, so a change learned on one software version is never blindly written to another.
Checksum correction
Checksums covering the regions a patch touches are recalculated as part of patch generation, so the ECU accepts the modified flash.
V46.x DTC codes
Map Decoder holds 336 diagnostic trouble codes for the V46.x. Each entry stores the address and the byte values measured on a real file.
P000AP000BP0011P0012P0014P0015P0017P0031P0032P0037P0038P0053P0054P0071P0095P0096P0097P0098P0099P0105P0106P0107P0108P0115
Other V4 ECUs
- Valeo V421 solution
V46.x solutions by vehicle brand
- Peugeot Lambda / O218 ECUs · 485 variants
- Citroen Lambda / O218 ECUs · 465 variants
- Peugeot Throttle Valve (TVA)18 ECUs · 430 variants
- Citroen Throttle Valve (TVA)18 ECUs · 423 variants
- Peugeot Catalyst Off9 ECUs · 248 variants
- Citroen Catalyst Off9 ECUs · 223 variants
Valeo V46.x — frequently asked questions
What is the Valeo V46.x?
The V46.x is an engine control unit produced by Valeo, part of the V4 generation. It is used in Citroen, Opel and Peugeot vehicles.
Can Map Decoder identify maps in V46.x files?
Yes. Upload an original read and the relevant calibration tables are located automatically. The result is verified against the binary before any patch is offered, so a mismatched file is rejected rather than silently patched.
Which operations are supported for the Valeo V46.x?
Validated operations for this ECU: Catalyst Off, Lambda / O2 and Throttle Valve (TVA). They come from 18 stored modifications learned on real files.
Does Map Decoder support DTC removal on the V46.x?
Yes. 336 diagnostic trouble codes are mapped for this ECU, each with the address and the byte values measured on a real file rather than a guessed constant.
Does Map Decoder correct the checksum after patching a V46.x file?
Yes. Checksums covering the regions a patch changes are recalculated during patch generation, so the modified file is accepted by the ECU.
Work on Valeo V46.x files
Map Decoder analyses Valeo V46.x files, detects the maps and generates a verified patch with the checksum corrected.